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Samsung SM951 NVMe M.2 PCIe 256GB SSD Review

By: Jon Coulter | PCIe in Storage | Posted: Jun 10, 2015 2:09 pm
TweakTown Rating: 96%Manufacturer: Samsung



Version and / or Patch Used: 2.47


ATTO is a timeless benchmark used to provide manufacturers with data used for marketing storage products.




Sequential read transfers max out at 2.14 GB/s. Sequential write transfers max out at 1.24 GB/s.


Sequential Write




None of the PCIe drives can match the small file write performance of our 3-drive 600 Pro array. As file sizes increase, the AHCI SM951 and the DC P3700 run away from the pack. Of the PCIe drives, the SM951 NVMe has the best small file performance up to 8KB transfers.


Sequential Read




Both Samsung drives are able to massively outperform the Intel drives at transfer sizes up to 256KB. The SM951 NVMe is delivering 5x the performance of the Intel drives at 16KB transfers. However, our 600 Pro array dominates the field with superior small file performance up to 8K in size.



Anvil Storage Utilities


Version and / or Patch Used: 1.1.0


Anvil's Storage Utilities is a storage benchmark designed to measure the storage performance of SSD's. The Standard Storage Benchmark performs a series of tests; you can run a full test or just the read or write test, or you can run a single test, i.e. 4k QD16.








The SM951 NVMe drive delivers incredible read performance, with the highest read score we've seen to date. Both SM951 versions have read performance that is superior to the competition.


(Anvil) Read IOPS through Queue Depth Scale




The SM951 NVMe roasts the competition where it matters most, QD1-16.


(Anvil) Write IOPS through Queue Scale




At QD1-4, our 600 Pro array easily outperforms the PCIe drives. From there, the Intel drives leave everyone in the dust.

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